Zytel is abrand of high-strength, abrasion, and impact-resistantnylon products manufactured byCelanese. The Zytel trademark is used for a line ofthermoplasticpolyamide formulations mostly based onnylon 66, but also includes grades based onnylon 6 as a matrix, long chain nylons such as nylon 610 (if based on at least one renewablemonomer they are branded Zytel RS), andcopolymers including a transparent resin called Zytel 330. Resins based onpolyphthalamides are branded 'Zytel HTN'. The Zytel product range exploits that nylon is one of the most compatiblepolymers with modifiers, and so offers grades with varying degrees offiberglass, from 13% to 60% (to increase stiffness and strength),rubber toughened resins andflame retarded grades. Nylon resins with mineral reinforcements are branded 'Minlon'.[1]
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The properties of Zytel vary with the specific formulation: Zytel HTN 35% Glass Reinforced Resin, consisting of 35% glass fibre by weight, has atensile strength of around 30kpsi and aflexural modulus of 1500kpsi under room temperature conditions. Zytel also provides chemical resistance to common chemicals such asmotor oil,transmission fluid, andmethanol, and shows littlethermal expansion.[2] Other additives or treatments may be used to increase toughness, wear resistance, and temperature tolerance.[3]
